MAX98360D

Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

One-of-a-Kind Filterless, High-Performance Class-D Amplifier in a Tiny WLP Package with no Vias or Programming Required


Please check latest availability status for a specific part variant.

Description

The MAX98360A/B/C/D is an easy-to-use, low-cost, digital pulse-code modulation (PCM) input Class-D amplifier that provides industry-leading, Class-AB audio performance with Class-D efficiency. The digital audio interface automatically recognizes different PCM and TDM clocking schemes which eliminates the need for I2C programming. Simply supply power, LRCLK, BCLK, and digital audio to generate audio. Furthermore, a novel pinout allows customers to use the cost-effective WLP package with no need for expensive vias.

The digital audio interface is highly flexible. The devices support I2S, left-justified, and 8-channel time division multiplexed (TDM) data formats. The digital audio interface accepts 8kHz, 16kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, and 96kHz sample rates. Data words can be 16-bit, 24-bit, or 32-bit in I2S and left-justified modes and 16-bit or 32-bit in TDM mode.

Digital audio interface input thresholds are ideal for interfacing to 1.2V and 1.8V logic. The devices can tolerate logic input voltages up to 5.5V.

The MAX98360A and MAX98360B have fast 1ms turn-on times while the MAX98360C and MAX98360D ramp the volume over 13ms during turn-on and turn-off.

The devices eliminate the need for the external MCLK signal that is typically used for PCM communication. This reduces EMI and possible board coupling issues in addition to reducing the size and pin count. The devices also feature a very high wideband jitter tolerance (12ns, typ) on BCLK and LRCLK to provide robust operation.

Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class-D devices and reduces the component count of the solution.

The devices are specified over the -40°C to +85°C temperature range.
MAX98360A, MAX98360B, MAX98360C, MAX98360D: Functional Diagram MAX98360A, MAX98360B, MAX98360C, MAX98360D: Functional Diagram Enlarge+

Key Features

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V
  • 2.2mA Quiescent Current
  • 1ms Turn-On Time (for MAX98360A and MAX98360B)
  • 92% Efficiency (RL = 8Ω, THD+N = 10%)
  • 10μVRMS Output Noise
  • 110dB Dynamic Range
  • Low 0.009% THD+N at 1kHz
  • No MCLK Required
  • Sample Rates of 8kHz to 96kHz
  • Supports Left, Right, or (Left/2 + Right/2) Output in I2S and Left-Justified Modes
  • Sophisticated Edge Rate Control Enables Filterless Class-D Outputs
  • 81dB PSRR at 217Hz
  • 1.5μA Standby Current Allows Elimination of GPIO for EN Pin
  • Low RF Susceptibility Rejects TDMA Noise from GSM Radios
  • Class-D Switching Frequency Trimmed to 5% for Better EMI Planning
  • Extensive Click-and-Pop Reduction Circuitry
  • Robust Short-Circuit and Thermal Protection
  • Available in Space-Saving Package: 9-pin WLP (0.4mm Pitch)
  • 3.69mm2 Solution Size for WLP With A Single Bypass Capacitor

Applications/Uses

  • Single Li-ion Cell/5V Devices
  • Smart Speakers
  • Notebook Computers
  • IoT Devices
  • Gaming Devices (Audio and Haptics)
  • Smartphones
  • Tablets
  • Cameras

MAX98360AEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D
MAX98360BEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D
MAX98360CEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D
MAX98360DEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D

Quality and Environmental Data

Request Reliability Report for: MAX98360D 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources


MAX98360B
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V

MAX98360C
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V

MAX98360D
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V

MAX98360A
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V